services/device/generic_sensor/sensor_impl.h

// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef SERVICES_DEVICE_GENERIC_SENSOR_SENSOR_IMPL_H_
#define SERVICES_DEVICE_GENERIC_SENSOR_SENSOR_IMPL_H_

#include "base/memory/raw_ptr.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "services/device/generic_sensor/platform_sensor.h"
#include "services/device/public/mojom/sensor.mojom.h"
#include "services/device/public/mojom/sensor_provider.mojom.h"

namespace device {

class SensorProviderImpl;

// Implementation of Sensor mojo interface.
// Instances of this class are created by SensorProviderImpl.
class SensorImpl final : public mojom::Sensor, public PlatformSensor::Client {
 public:
  SensorImpl(scoped_refptr<PlatformSensor> sensor,
             mojo::PendingReceiver<mojom::SensorClientController> controller,
             bool initially_suspended,
             SensorProviderImpl* provider);

  SensorImpl(const SensorImpl&) = delete;
  SensorImpl& operator=(const SensorImpl&) = delete;

  ~SensorImpl() override;

  mojo::PendingReceiver<mojom::SensorClient> GetClient();

 private:
  // Sensor implementation.
  void AddConfiguration(const PlatformSensorConfiguration& configuration,
                        AddConfigurationCallback callback) override;
  void GetDefaultConfiguration(
      GetDefaultConfigurationCallback callback) override;
  void RemoveConfiguration(
      const PlatformSensorConfiguration& configuration) override;
  void Suspend() override;
  void Resume() override;
  void ConfigureReadingChangeNotifications(bool enabled) override;

  // device::PlatformSensor::Client implementation.
  void OnSensorReadingChanged(mojom::SensorType type) override;
  void OnSensorError() override;
  bool IsSuspended() override;

 private:
  class SensorClientControllerImpl;

  void OnControllerSuspend();
  void OnControllerResume();
  void OnControllerDisconnect();

  std::unique_ptr<SensorClientControllerImpl> client_controller_;

  scoped_refptr<PlatformSensor> sensor_;
  mojo::Remote<mojom::SensorClient> client_;
  bool reading_notification_enabled_;
  bool client_suspended_;
  bool controller_suspended_;
  raw_ptr<SensorProviderImpl> provider_;
};

}  // namespace device

#endif  // SERVICES_DEVICE_GENERIC_SENSOR_SENSOR_IMPL_H_